Dams for hydropower and irrigation: Trends, challenges, and ...
2024年7月1日 · We then review projected demands for irrigation storage and hydropower by 2050 and analyze how projected growth aligns with the identified potential for irrigation and hydropower dams.
Dujiangyan - Wikipedia
The Dujiangyan (Chinese: 都江堰; pinyin: Dūjiāngyàn) is an ancient irrigation system in Dujiangyan City, Sichuan, China. Originally constructed around 256 BC by the State of Qin as an irrigation and flood control project, it is still in use today. The system's infrastructure develops on the Min River (Minjiang), the longest tributary of the Yangtze.
Dam | Definition, History, Types, Environmental Impacts, Examples ...
2024年11月22日 · dam, structure built across a stream, a river, or an estuary to retain water. Dams are built to provide water for human consumption, for irrigating arid and semiarid lands, or for use in industrial processes.
Dam - Wikipedia
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A ...
the timely and continuous supply of irrigation water needed to meet the demands of crops and livestock. Existing and new dams will continue to play a major role in the management systems. Sustainable irrigated agriculture, drainage of rainfed crops and of irrigated land and flood control and management comprise the main action thrusts of the ICID.
Dams 101 | Association of State Dam Safety
Water storage: Dams create reservoirs that supply water for a multitude of uses, including fire control, irrigation, recreation, domestic and industrial water supply, and more. Irrigation: Ten percent of American cropland is irrigated using water stored behind dams.
dam - Students | Britannica Kids | Homework Help
Dams are built to provide irrigation, flood control, water supply, improvement of navigation, and electric power. Most modern dams are multipurpose. The primary function of many dams is to provide water for farming. Some dams divert rivers into …
8 Purposes of Dam : Irrigation, Navigation, Water Supply, Flood …
2022年7月11日 · A dam may be defined as a structure constructed to obstruct the flow of water or underground flowing water and streams, thereby forming reservoirs that can be useful for supplying water for irrigation, industrial use, electricity generation, navigation, human use, etc. The dam can also serve as a protective structure for suppressing the flood.
Assessing the effects of irrigation and hydropower dams on river ...
2022年12月1日 · Irrigation dams were associated to the inversion of seasonal flow patterns and to a reduction in nutrient concentrations, while hydropower dams were linked to higher rates of flow change and to increases in water temperature.
Dujiangyan Irrigation System, Sichuan: Map - TravelChinaGuide
2024年4月12日 · Dujiangyan is the oldest and only surviving no-dam irrigation system in the world; and a wonder in the development of Chinese science. The project consists of three important parts, namely Yuzui, Feishayan and Baopingkou scientifically designed to automatically control the water flow of the rivers from the mountains to the plains throughout the ...